Communications in Soil Science and Plant Analysis · 1983 · 11 citations · 4 references
AgricultureCrop SciencesPlant SciencesPlant EcophysiologyPlant NutritionPlant PhysiologyFoliar NutritionNitrogen AssimilationNitrogen CycleNitrogen ManagementNitrogen NutritionPlant Nutrient UptakeFoliar Nitrogen NutritionLeaf Nitrogen AssimilationLeaf Nitrogen ContentNitrogen Effects On PhotosynthesisPlant Nitrogen Uptake
Abstract Pelargonium hortorum ‘Sincerity’ plants were grown at various levels of nitrogen to determine the response of foliar nitrogen and petiole nitrate concentrations to changes in nitrogen supply. Total nitrogen in the upper leaf blades and petiole nitrate concentrations were both highly correlated with nitrogen supply. However, changes in the concentrations of petiole nitrate reflected changes in nitrogen supply over a wider range of concentrations. The minimum critical concentrations associated with a 10% reduction in yield (dry weight) were 2.9% and 5,000 ppm for foliar nitrogen and petiole nitrate nitrogen, respectively. Key words: Pelargonium hortorum nitrogentissue analysis
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The Water-Culture Method of Growing Plants without Soil.
D. R. Hoaglang · Medical Entomology and Zoology · 1950 · 8.7K citations
Mineral Analysis of Plant Tissues
Peter F. Smith · Annual Review of Plant Physiology · 1962 · 247 citations